Problem installing addon AddonAttributeCheckbox

I have just purchased an addon for JoomShopping. It is AddonAttributeCheckbox.

The problem I am having is that I have tried to install both the 1.0.2 and the 1.0.3 version and both give me this installation error (see image attached).
I am running the version of JoomShopping that came with the Joomlart template JA Tiris on Joomla 3. The version of JoomShopping that came with it is 4.3.1. I had every intension of upgrading it to the latest version but was unable as the template has customised JoomShopping very nicely and if I upgrade I lose all that customisation.

Please can you advise what I must do to make this addon work. Your most urgent response will be appreciated. I am currently running the site on my WAMP server. I am not sure if this might be affecting it.